Résumé
Double primary cancer is usually accompanied by gastrointestinal cancer. The incidence of histologically different cancers in the same organ is less than that of double cancers arising from different organs. The cancers accompanied by esophageal squamous cell carcinoma are laryngopharyngeal cancer, gastric adenocarcinoma and primary hepatocarcinoma. Esophageal cancer is supposed to be frequently accompanied by squamous cell carcinoma of the head and neck or the upper respiratory tract because of such common carcinogens as smoking and alcohol ingestion. On the other hand, it is vary rare that a synchronous double primary cancer is diagnosed at the esophagus. We present here a case of double esophageal cancer in a 77 year-old patient who visited our hospital because of progressive dysphagia that she'd experienced for 3 weeks.